<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.math3.stat.descriptive;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    import java.io.Serializable;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.lang.reflect.InvocationTargetException;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.Arrays;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import org.apache.commons.math3.exception.MathIllegalArgumentException;<a name="line.23"></a>
<FONT color="green">024</FONT>    import org.apache.commons.math3.exception.NullArgumentException;<a name="line.24"></a>
<FONT color="green">025</FONT>    import org.apache.commons.math3.exception.MathIllegalStateException;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.commons.math3.exception.util.LocalizedFormats;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.commons.math3.stat.descriptive.moment.GeometricMean;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.commons.math3.stat.descriptive.moment.Kurtosis;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.commons.math3.stat.descriptive.moment.Mean;<a name="line.29"></a>
<FONT color="green">030</FONT>    import org.apache.commons.math3.stat.descriptive.moment.Skewness;<a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.commons.math3.stat.descriptive.moment.Variance;<a name="line.31"></a>
<FONT color="green">032</FONT>    import org.apache.commons.math3.stat.descriptive.rank.Max;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.apache.commons.math3.stat.descriptive.rank.Min;<a name="line.33"></a>
<FONT color="green">034</FONT>    import org.apache.commons.math3.stat.descriptive.rank.Percentile;<a name="line.34"></a>
<FONT color="green">035</FONT>    import org.apache.commons.math3.stat.descriptive.summary.Sum;<a name="line.35"></a>
<FONT color="green">036</FONT>    import org.apache.commons.math3.stat.descriptive.summary.SumOfSquares;<a name="line.36"></a>
<FONT color="green">037</FONT>    import org.apache.commons.math3.util.MathUtils;<a name="line.37"></a>
<FONT color="green">038</FONT>    import org.apache.commons.math3.util.ResizableDoubleArray;<a name="line.38"></a>
<FONT color="green">039</FONT>    import org.apache.commons.math3.util.FastMath;<a name="line.39"></a>
<FONT color="green">040</FONT>    <a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>    /**<a name="line.42"></a>
<FONT color="green">043</FONT>     * Maintains a dataset of values of a single variable and computes descriptive<a name="line.43"></a>
<FONT color="green">044</FONT>     * statistics based on stored data. The {@link #getWindowSize() windowSize}<a name="line.44"></a>
<FONT color="green">045</FONT>     * property sets a limit on the number of values that can be stored in the<a name="line.45"></a>
<FONT color="green">046</FONT>     * dataset.  The default value, INFINITE_WINDOW, puts no limit on the size of<a name="line.46"></a>
<FONT color="green">047</FONT>     * the dataset.  This value should be used with caution, as the backing store<a name="line.47"></a>
<FONT color="green">048</FONT>     * will grow without bound in this case.  For very large datasets,<a name="line.48"></a>
<FONT color="green">049</FONT>     * {@link SummaryStatistics}, which does not store the dataset, should be used<a name="line.49"></a>
<FONT color="green">050</FONT>     * instead of this class. If &lt;code&gt;windowSize&lt;/code&gt; is not INFINITE_WINDOW and<a name="line.50"></a>
<FONT color="green">051</FONT>     * more values are added than can be stored in the dataset, new values are<a name="line.51"></a>
<FONT color="green">052</FONT>     * added in a "rolling" manner, with new values replacing the "oldest" values<a name="line.52"></a>
<FONT color="green">053</FONT>     * in the dataset.<a name="line.53"></a>
<FONT color="green">054</FONT>     *<a name="line.54"></a>
<FONT color="green">055</FONT>     * &lt;p&gt;Note: this class is not threadsafe.  Use<a name="line.55"></a>
<FONT color="green">056</FONT>     * {@link SynchronizedDescriptiveStatistics} if concurrent access from multiple<a name="line.56"></a>
<FONT color="green">057</FONT>     * threads is required.&lt;/p&gt;<a name="line.57"></a>
<FONT color="green">058</FONT>     *<a name="line.58"></a>
<FONT color="green">059</FONT>     * @version $Id: DescriptiveStatistics.java 1422354 2012-12-15 20:59:01Z psteitz $<a name="line.59"></a>
<FONT color="green">060</FONT>     */<a name="line.60"></a>
<FONT color="green">061</FONT>    public class DescriptiveStatistics implements StatisticalSummary, Serializable {<a name="line.61"></a>
<FONT color="green">062</FONT>    <a name="line.62"></a>
<FONT color="green">063</FONT>        /**<a name="line.63"></a>
<FONT color="green">064</FONT>         * Represents an infinite window size.  When the {@link #getWindowSize()}<a name="line.64"></a>
<FONT color="green">065</FONT>         * returns this value, there is no limit to the number of data values<a name="line.65"></a>
<FONT color="green">066</FONT>         * that can be stored in the dataset.<a name="line.66"></a>
<FONT color="green">067</FONT>         */<a name="line.67"></a>
<FONT color="green">068</FONT>        public static final int INFINITE_WINDOW = -1;<a name="line.68"></a>
<FONT color="green">069</FONT>    <a name="line.69"></a>
<FONT color="green">070</FONT>        /** Serialization UID */<a name="line.70"></a>
<FONT color="green">071</FONT>        private static final long serialVersionUID = 4133067267405273064L;<a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>
<FONT color="green">073</FONT>        /** Name of the setQuantile method. */<a name="line.73"></a>
<FONT color="green">074</FONT>        private static final String SET_QUANTILE_METHOD_NAME = "setQuantile";<a name="line.74"></a>
<FONT color="green">075</FONT>    <a name="line.75"></a>
<FONT color="green">076</FONT>        /** hold the window size **/<a name="line.76"></a>
<FONT color="green">077</FONT>        protected int windowSize = INFINITE_WINDOW;<a name="line.77"></a>
<FONT color="green">078</FONT>    <a name="line.78"></a>
<FONT color="green">079</FONT>        /**<a name="line.79"></a>
<FONT color="green">080</FONT>         *  Stored data values<a name="line.80"></a>
<FONT color="green">081</FONT>         */<a name="line.81"></a>
<FONT color="green">082</FONT>        private ResizableDoubleArray eDA = new ResizableDoubleArray();<a name="line.82"></a>
<FONT color="green">083</FONT>    <a name="line.83"></a>
<FONT color="green">084</FONT>        /** Mean statistic implementation - can be reset by setter. */<a name="line.84"></a>
<FONT color="green">085</FONT>        private UnivariateStatistic meanImpl = new Mean();<a name="line.85"></a>
<FONT color="green">086</FONT>    <a name="line.86"></a>
<FONT color="green">087</FONT>        /** Geometric mean statistic implementation - can be reset by setter. */<a name="line.87"></a>
<FONT color="green">088</FONT>        private UnivariateStatistic geometricMeanImpl = new GeometricMean();<a name="line.88"></a>
<FONT color="green">089</FONT>    <a name="line.89"></a>
<FONT color="green">090</FONT>        /** Kurtosis statistic implementation - can be reset by setter. */<a name="line.90"></a>
<FONT color="green">091</FONT>        private UnivariateStatistic kurtosisImpl = new Kurtosis();<a name="line.91"></a>
<FONT color="green">092</FONT>    <a name="line.92"></a>
<FONT color="green">093</FONT>        /** Maximum statistic implementation - can be reset by setter. */<a name="line.93"></a>
<FONT color="green">094</FONT>        private UnivariateStatistic maxImpl = new Max();<a name="line.94"></a>
<FONT color="green">095</FONT>    <a name="line.95"></a>
<FONT color="green">096</FONT>        /** Minimum statistic implementation - can be reset by setter. */<a name="line.96"></a>
<FONT color="green">097</FONT>        private UnivariateStatistic minImpl = new Min();<a name="line.97"></a>
<FONT color="green">098</FONT>    <a name="line.98"></a>
<FONT color="green">099</FONT>        /** Percentile statistic implementation - can be reset by setter. */<a name="line.99"></a>
<FONT color="green">100</FONT>        private UnivariateStatistic percentileImpl = new Percentile();<a name="line.100"></a>
<FONT color="green">101</FONT>    <a name="line.101"></a>
<FONT color="green">102</FONT>        /** Skewness statistic implementation - can be reset by setter. */<a name="line.102"></a>
<FONT color="green">103</FONT>        private UnivariateStatistic skewnessImpl = new Skewness();<a name="line.103"></a>
<FONT color="green">104</FONT>    <a name="line.104"></a>
<FONT color="green">105</FONT>        /** Variance statistic implementation - can be reset by setter. */<a name="line.105"></a>
<FONT color="green">106</FONT>        private UnivariateStatistic varianceImpl = new Variance();<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>        /** Sum of squares statistic implementation - can be reset by setter. */<a name="line.108"></a>
<FONT color="green">109</FONT>        private UnivariateStatistic sumsqImpl = new SumOfSquares();<a name="line.109"></a>
<FONT color="green">110</FONT>    <a name="line.110"></a>
<FONT color="green">111</FONT>        /** Sum statistic implementation - can be reset by setter. */<a name="line.111"></a>
<FONT color="green">112</FONT>        private UnivariateStatistic sumImpl = new Sum();<a name="line.112"></a>
<FONT color="green">113</FONT>    <a name="line.113"></a>
<FONT color="green">114</FONT>        /**<a name="line.114"></a>
<FONT color="green">115</FONT>         * Construct a DescriptiveStatistics instance with an infinite window<a name="line.115"></a>
<FONT color="green">116</FONT>         */<a name="line.116"></a>
<FONT color="green">117</FONT>        public DescriptiveStatistics() {<a name="line.117"></a>
<FONT color="green">118</FONT>        }<a name="line.118"></a>
<FONT color="green">119</FONT>    <a name="line.119"></a>
<FONT color="green">120</FONT>        /**<a name="line.120"></a>
<FONT color="green">121</FONT>         * Construct a DescriptiveStatistics instance with the specified window<a name="line.121"></a>
<FONT color="green">122</FONT>         *<a name="line.122"></a>
<FONT color="green">123</FONT>         * @param window the window size.<a name="line.123"></a>
<FONT color="green">124</FONT>         * @throws MathIllegalArgumentException if window size is less than 1 but<a name="line.124"></a>
<FONT color="green">125</FONT>         * not equal to {@link #INFINITE_WINDOW}<a name="line.125"></a>
<FONT color="green">126</FONT>         */<a name="line.126"></a>
<FONT color="green">127</FONT>        public DescriptiveStatistics(int window) throws MathIllegalArgumentException {<a name="line.127"></a>
<FONT color="green">128</FONT>            setWindowSize(window);<a name="line.128"></a>
<FONT color="green">129</FONT>        }<a name="line.129"></a>
<FONT color="green">130</FONT>    <a name="line.130"></a>
<FONT color="green">131</FONT>        /**<a name="line.131"></a>
<FONT color="green">132</FONT>         * Construct a DescriptiveStatistics instance with an infinite window<a name="line.132"></a>
<FONT color="green">133</FONT>         * and the initial data values in double[] initialDoubleArray.<a name="line.133"></a>
<FONT color="green">134</FONT>         * If initialDoubleArray is null, then this constructor corresponds to<a name="line.134"></a>
<FONT color="green">135</FONT>         * DescriptiveStatistics()<a name="line.135"></a>
<FONT color="green">136</FONT>         *<a name="line.136"></a>
<FONT color="green">137</FONT>         * @param initialDoubleArray the initial double[].<a name="line.137"></a>
<FONT color="green">138</FONT>         */<a name="line.138"></a>
<FONT color="green">139</FONT>        public DescriptiveStatistics(double[] initialDoubleArray) {<a name="line.139"></a>
<FONT color="green">140</FONT>            if (initialDoubleArray != null) {<a name="line.140"></a>
<FONT color="green">141</FONT>                eDA = new ResizableDoubleArray(initialDoubleArray);<a name="line.141"></a>
<FONT color="green">142</FONT>            }<a name="line.142"></a>
<FONT color="green">143</FONT>        }<a name="line.143"></a>
<FONT color="green">144</FONT>    <a name="line.144"></a>
<FONT color="green">145</FONT>        /**<a name="line.145"></a>
<FONT color="green">146</FONT>         * Copy constructor.  Construct a new DescriptiveStatistics instance that<a name="line.146"></a>
<FONT color="green">147</FONT>         * is a copy of original.<a name="line.147"></a>
<FONT color="green">148</FONT>         *<a name="line.148"></a>
<FONT color="green">149</FONT>         * @param original DescriptiveStatistics instance to copy<a name="line.149"></a>
<FONT color="green">150</FONT>         * @throws NullArgumentException if original is null<a name="line.150"></a>
<FONT color="green">151</FONT>         */<a name="line.151"></a>
<FONT color="green">152</FONT>        public DescriptiveStatistics(DescriptiveStatistics original) throws NullArgumentException {<a name="line.152"></a>
<FONT color="green">153</FONT>            copy(original, this);<a name="line.153"></a>
<FONT color="green">154</FONT>        }<a name="line.154"></a>
<FONT color="green">155</FONT>    <a name="line.155"></a>
<FONT color="green">156</FONT>        /**<a name="line.156"></a>
<FONT color="green">157</FONT>         * Adds the value to the dataset. If the dataset is at the maximum size<a name="line.157"></a>
<FONT color="green">158</FONT>         * (i.e., the number of stored elements equals the currently configured<a name="line.158"></a>
<FONT color="green">159</FONT>         * windowSize), the first (oldest) element in the dataset is discarded<a name="line.159"></a>
<FONT color="green">160</FONT>         * to make room for the new value.<a name="line.160"></a>
<FONT color="green">161</FONT>         *<a name="line.161"></a>
<FONT color="green">162</FONT>         * @param v the value to be added<a name="line.162"></a>
<FONT color="green">163</FONT>         */<a name="line.163"></a>
<FONT color="green">164</FONT>        public void addValue(double v) {<a name="line.164"></a>
<FONT color="green">165</FONT>            if (windowSize != INFINITE_WINDOW) {<a name="line.165"></a>
<FONT color="green">166</FONT>                if (getN() == windowSize) {<a name="line.166"></a>
<FONT color="green">167</FONT>                    eDA.addElementRolling(v);<a name="line.167"></a>
<FONT color="green">168</FONT>                } else if (getN() &lt; windowSize) {<a name="line.168"></a>
<FONT color="green">169</FONT>                    eDA.addElement(v);<a name="line.169"></a>
<FONT color="green">170</FONT>                }<a name="line.170"></a>
<FONT color="green">171</FONT>            } else {<a name="line.171"></a>
<FONT color="green">172</FONT>                eDA.addElement(v);<a name="line.172"></a>
<FONT color="green">173</FONT>            }<a name="line.173"></a>
<FONT color="green">174</FONT>        }<a name="line.174"></a>
<FONT color="green">175</FONT>    <a name="line.175"></a>
<FONT color="green">176</FONT>        /**<a name="line.176"></a>
<FONT color="green">177</FONT>         * Removes the most recent value from the dataset.<a name="line.177"></a>
<FONT color="green">178</FONT>         *<a name="line.178"></a>
<FONT color="green">179</FONT>         * @throws MathIllegalStateException if there are no elements stored<a name="line.179"></a>
<FONT color="green">180</FONT>         */<a name="line.180"></a>
<FONT color="green">181</FONT>        public void removeMostRecentValue() throws MathIllegalStateException {<a name="line.181"></a>
<FONT color="green">182</FONT>            try {<a name="line.182"></a>
<FONT color="green">183</FONT>                eDA.discardMostRecentElements(1);<a name="line.183"></a>
<FONT color="green">184</FONT>            } catch (MathIllegalArgumentException ex) {<a name="line.184"></a>
<FONT color="green">185</FONT>                throw new MathIllegalStateException(LocalizedFormats.NO_DATA);<a name="line.185"></a>
<FONT color="green">186</FONT>            }<a name="line.186"></a>
<FONT color="green">187</FONT>        }<a name="line.187"></a>
<FONT color="green">188</FONT>    <a name="line.188"></a>
<FONT color="green">189</FONT>        /**<a name="line.189"></a>
<FONT color="green">190</FONT>         * Replaces the most recently stored value with the given value.<a name="line.190"></a>
<FONT color="green">191</FONT>         * There must be at least one element stored to call this method.<a name="line.191"></a>
<FONT color="green">192</FONT>         *<a name="line.192"></a>
<FONT color="green">193</FONT>         * @param v the value to replace the most recent stored value<a name="line.193"></a>
<FONT color="green">194</FONT>         * @return replaced value<a name="line.194"></a>
<FONT color="green">195</FONT>         * @throws MathIllegalStateException if there are no elements stored<a name="line.195"></a>
<FONT color="green">196</FONT>         */<a name="line.196"></a>
<FONT color="green">197</FONT>        public double replaceMostRecentValue(double v) throws MathIllegalStateException {<a name="line.197"></a>
<FONT color="green">198</FONT>            return eDA.substituteMostRecentElement(v);<a name="line.198"></a>
<FONT color="green">199</FONT>        }<a name="line.199"></a>
<FONT color="green">200</FONT>    <a name="line.200"></a>
<FONT color="green">201</FONT>        /**<a name="line.201"></a>
<FONT color="green">202</FONT>         * Returns the &lt;a href="http://www.xycoon.com/arithmetic_mean.htm"&gt;<a name="line.202"></a>
<FONT color="green">203</FONT>         * arithmetic mean &lt;/a&gt; of the available values<a name="line.203"></a>
<FONT color="green">204</FONT>         * @return The mean or Double.NaN if no values have been added.<a name="line.204"></a>
<FONT color="green">205</FONT>         */<a name="line.205"></a>
<FONT color="green">206</FONT>        public double getMean() {<a name="line.206"></a>
<FONT color="green">207</FONT>            return apply(meanImpl);<a name="line.207"></a>
<FONT color="green">208</FONT>        }<a name="line.208"></a>
<FONT color="green">209</FONT>    <a name="line.209"></a>
<FONT color="green">210</FONT>        /**<a name="line.210"></a>
<FONT color="green">211</FONT>         * Returns the &lt;a href="http://www.xycoon.com/geometric_mean.htm"&gt;<a name="line.211"></a>
<FONT color="green">212</FONT>         * geometric mean &lt;/a&gt; of the available values<a name="line.212"></a>
<FONT color="green">213</FONT>         * @return The geometricMean, Double.NaN if no values have been added,<a name="line.213"></a>
<FONT color="green">214</FONT>         * or if the product of the available values is less than or equal to 0.<a name="line.214"></a>
<FONT color="green">215</FONT>         */<a name="line.215"></a>
<FONT color="green">216</FONT>        public double getGeometricMean() {<a name="line.216"></a>
<FONT color="green">217</FONT>            return apply(geometricMeanImpl);<a name="line.217"></a>
<FONT color="green">218</FONT>        }<a name="line.218"></a>
<FONT color="green">219</FONT>    <a name="line.219"></a>
<FONT color="green">220</FONT>        /**<a name="line.220"></a>
<FONT color="green">221</FONT>         * Returns the (sample) variance of the available values.<a name="line.221"></a>
<FONT color="green">222</FONT>         *<a name="line.222"></a>
<FONT color="green">223</FONT>         * &lt;p&gt;This method returns the bias-corrected sample variance (using {@code n - 1} in<a name="line.223"></a>
<FONT color="green">224</FONT>         * the denominator).  Use {@link #getPopulationVariance()} for the non-bias-corrected<a name="line.224"></a>
<FONT color="green">225</FONT>         * population variance.&lt;/p&gt;<a name="line.225"></a>
<FONT color="green">226</FONT>         *<a name="line.226"></a>
<FONT color="green">227</FONT>         * @return The variance, Double.NaN if no values have been added<a name="line.227"></a>
<FONT color="green">228</FONT>         * or 0.0 for a single value set.<a name="line.228"></a>
<FONT color="green">229</FONT>         */<a name="line.229"></a>
<FONT color="green">230</FONT>        public double getVariance() {<a name="line.230"></a>
<FONT color="green">231</FONT>            return apply(varianceImpl);<a name="line.231"></a>
<FONT color="green">232</FONT>        }<a name="line.232"></a>
<FONT color="green">233</FONT>    <a name="line.233"></a>
<FONT color="green">234</FONT>        /**<a name="line.234"></a>
<FONT color="green">235</FONT>         * Returns the &lt;a href="http://en.wikibooks.org/wiki/Statistics/Summary/Variance"&gt;<a name="line.235"></a>
<FONT color="green">236</FONT>         * population variance&lt;/a&gt; of the available values.<a name="line.236"></a>
<FONT color="green">237</FONT>         *<a name="line.237"></a>
<FONT color="green">238</FONT>         * @return The population variance, Double.NaN if no values have been added,<a name="line.238"></a>
<FONT color="green">239</FONT>         * or 0.0 for a single value set.<a name="line.239"></a>
<FONT color="green">240</FONT>         */<a name="line.240"></a>
<FONT color="green">241</FONT>        public double getPopulationVariance() {<a name="line.241"></a>
<FONT color="green">242</FONT>            return apply(new Variance(false));<a name="line.242"></a>
<FONT color="green">243</FONT>        }<a name="line.243"></a>
<FONT color="green">244</FONT>    <a name="line.244"></a>
<FONT color="green">245</FONT>        /**<a name="line.245"></a>
<FONT color="green">246</FONT>         * Returns the standard deviation of the available values.<a name="line.246"></a>
<FONT color="green">247</FONT>         * @return The standard deviation, Double.NaN if no values have been added<a name="line.247"></a>
<FONT color="green">248</FONT>         * or 0.0 for a single value set.<a name="line.248"></a>
<FONT color="green">249</FONT>         */<a name="line.249"></a>
<FONT color="green">250</FONT>        public double getStandardDeviation() {<a name="line.250"></a>
<FONT color="green">251</FONT>            double stdDev = Double.NaN;<a name="line.251"></a>
<FONT color="green">252</FONT>            if (getN() &gt; 0) {<a name="line.252"></a>
<FONT color="green">253</FONT>                if (getN() &gt; 1) {<a name="line.253"></a>
<FONT color="green">254</FONT>                    stdDev = FastMath.sqrt(getVariance());<a name="line.254"></a>
<FONT color="green">255</FONT>                } else {<a name="line.255"></a>
<FONT color="green">256</FONT>                    stdDev = 0.0;<a name="line.256"></a>
<FONT color="green">257</FONT>                }<a name="line.257"></a>
<FONT color="green">258</FONT>            }<a name="line.258"></a>
<FONT color="green">259</FONT>            return stdDev;<a name="line.259"></a>
<FONT color="green">260</FONT>        }<a name="line.260"></a>
<FONT color="green">261</FONT>    <a name="line.261"></a>
<FONT color="green">262</FONT>        /**<a name="line.262"></a>
<FONT color="green">263</FONT>         * Returns the skewness of the available values. Skewness is a<a name="line.263"></a>
<FONT color="green">264</FONT>         * measure of the asymmetry of a given distribution.<a name="line.264"></a>
<FONT color="green">265</FONT>         * @return The skewness, Double.NaN if no values have been added<a name="line.265"></a>
<FONT color="green">266</FONT>         * or 0.0 for a value set &amp;lt;=2.<a name="line.266"></a>
<FONT color="green">267</FONT>         */<a name="line.267"></a>
<FONT color="green">268</FONT>        public double getSkewness() {<a name="line.268"></a>
<FONT color="green">269</FONT>            return apply(skewnessImpl);<a name="line.269"></a>
<FONT color="green">270</FONT>        }<a name="line.270"></a>
<FONT color="green">271</FONT>    <a name="line.271"></a>
<FONT color="green">272</FONT>        /**<a name="line.272"></a>
<FONT color="green">273</FONT>         * Returns the Kurtosis of the available values. Kurtosis is a<a name="line.273"></a>
<FONT color="green">274</FONT>         * measure of the "peakedness" of a distribution<a name="line.274"></a>
<FONT color="green">275</FONT>         * @return The kurtosis, Double.NaN if no values have been added, or 0.0<a name="line.275"></a>
<FONT color="green">276</FONT>         * for a value set &amp;lt;=3.<a name="line.276"></a>
<FONT color="green">277</FONT>         */<a name="line.277"></a>
<FONT color="green">278</FONT>        public double getKurtosis() {<a name="line.278"></a>
<FONT color="green">279</FONT>            return apply(kurtosisImpl);<a name="line.279"></a>
<FONT color="green">280</FONT>        }<a name="line.280"></a>
<FONT color="green">281</FONT>    <a name="line.281"></a>
<FONT color="green">282</FONT>        /**<a name="line.282"></a>
<FONT color="green">283</FONT>         * Returns the maximum of the available values<a name="line.283"></a>
<FONT color="green">284</FONT>         * @return The max or Double.NaN if no values have been added.<a name="line.284"></a>
<FONT color="green">285</FONT>         */<a name="line.285"></a>
<FONT color="green">286</FONT>        public double getMax() {<a name="line.286"></a>
<FONT color="green">287</FONT>            return apply(maxImpl);<a name="line.287"></a>
<FONT color="green">288</FONT>        }<a name="line.288"></a>
<FONT color="green">289</FONT>    <a name="line.289"></a>
<FONT color="green">290</FONT>        /**<a name="line.290"></a>
<FONT color="green">291</FONT>        * Returns the minimum of the available values<a name="line.291"></a>
<FONT color="green">292</FONT>        * @return The min or Double.NaN if no values have been added.<a name="line.292"></a>
<FONT color="green">293</FONT>        */<a name="line.293"></a>
<FONT color="green">294</FONT>        public double getMin() {<a name="line.294"></a>
<FONT color="green">295</FONT>            return apply(minImpl);<a name="line.295"></a>
<FONT color="green">296</FONT>        }<a name="line.296"></a>
<FONT color="green">297</FONT>    <a name="line.297"></a>
<FONT color="green">298</FONT>        /**<a name="line.298"></a>
<FONT color="green">299</FONT>         * Returns the number of available values<a name="line.299"></a>
<FONT color="green">300</FONT>         * @return The number of available values<a name="line.300"></a>
<FONT color="green">301</FONT>         */<a name="line.301"></a>
<FONT color="green">302</FONT>        public long getN() {<a name="line.302"></a>
<FONT color="green">303</FONT>            return eDA.getNumElements();<a name="line.303"></a>
<FONT color="green">304</FONT>        }<a name="line.304"></a>
<FONT color="green">305</FONT>    <a name="line.305"></a>
<FONT color="green">306</FONT>        /**<a name="line.306"></a>
<FONT color="green">307</FONT>         * Returns the sum of the values that have been added to Univariate.<a name="line.307"></a>
<FONT color="green">308</FONT>         * @return The sum or Double.NaN if no values have been added<a name="line.308"></a>
<FONT color="green">309</FONT>         */<a name="line.309"></a>
<FONT color="green">310</FONT>        public double getSum() {<a name="line.310"></a>
<FONT color="green">311</FONT>            return apply(sumImpl);<a name="line.311"></a>
<FONT color="green">312</FONT>        }<a name="line.312"></a>
<FONT color="green">313</FONT>    <a name="line.313"></a>
<FONT color="green">314</FONT>        /**<a name="line.314"></a>
<FONT color="green">315</FONT>         * Returns the sum of the squares of the available values.<a name="line.315"></a>
<FONT color="green">316</FONT>         * @return The sum of the squares or Double.NaN if no<a name="line.316"></a>
<FONT color="green">317</FONT>         * values have been added.<a name="line.317"></a>
<FONT color="green">318</FONT>         */<a name="line.318"></a>
<FONT color="green">319</FONT>        public double getSumsq() {<a name="line.319"></a>
<FONT color="green">320</FONT>            return apply(sumsqImpl);<a name="line.320"></a>
<FONT color="green">321</FONT>        }<a name="line.321"></a>
<FONT color="green">322</FONT>    <a name="line.322"></a>
<FONT color="green">323</FONT>        /**<a name="line.323"></a>
<FONT color="green">324</FONT>         * Resets all statistics and storage<a name="line.324"></a>
<FONT color="green">325</FONT>         */<a name="line.325"></a>
<FONT color="green">326</FONT>        public void clear() {<a name="line.326"></a>
<FONT color="green">327</FONT>            eDA.clear();<a name="line.327"></a>
<FONT color="green">328</FONT>        }<a name="line.328"></a>
<FONT color="green">329</FONT>    <a name="line.329"></a>
<FONT color="green">330</FONT>    <a name="line.330"></a>
<FONT color="green">331</FONT>        /**<a name="line.331"></a>
<FONT color="green">332</FONT>         * Returns the maximum number of values that can be stored in the<a name="line.332"></a>
<FONT color="green">333</FONT>         * dataset, or INFINITE_WINDOW (-1) if there is no limit.<a name="line.333"></a>
<FONT color="green">334</FONT>         *<a name="line.334"></a>
<FONT color="green">335</FONT>         * @return The current window size or -1 if its Infinite.<a name="line.335"></a>
<FONT color="green">336</FONT>         */<a name="line.336"></a>
<FONT color="green">337</FONT>        public int getWindowSize() {<a name="line.337"></a>
<FONT color="green">338</FONT>            return windowSize;<a name="line.338"></a>
<FONT color="green">339</FONT>        }<a name="line.339"></a>
<FONT color="green">340</FONT>    <a name="line.340"></a>
<FONT color="green">341</FONT>        /**<a name="line.341"></a>
<FONT color="green">342</FONT>         * WindowSize controls the number of values that contribute to the<a name="line.342"></a>
<FONT color="green">343</FONT>         * reported statistics.  For example, if windowSize is set to 3 and the<a name="line.343"></a>
<FONT color="green">344</FONT>         * values {1,2,3,4,5} have been added &lt;strong&gt; in that order&lt;/strong&gt; then<a name="line.344"></a>
<FONT color="green">345</FONT>         * the &lt;i&gt;available values&lt;/i&gt; are {3,4,5} and all reported statistics will<a name="line.345"></a>
<FONT color="green">346</FONT>         * be based on these values. If {@code windowSize} is decreased as a result<a name="line.346"></a>
<FONT color="green">347</FONT>         * of this call and there are more than the new value of elements in the<a name="line.347"></a>
<FONT color="green">348</FONT>         * current dataset, values from the front of the array are discarded to<a name="line.348"></a>
<FONT color="green">349</FONT>         * reduce the dataset to {@code windowSize} elements.<a name="line.349"></a>
<FONT color="green">350</FONT>         *<a name="line.350"></a>
<FONT color="green">351</FONT>         * @param windowSize sets the size of the window.<a name="line.351"></a>
<FONT color="green">352</FONT>         * @throws MathIllegalArgumentException if window size is less than 1 but<a name="line.352"></a>
<FONT color="green">353</FONT>         * not equal to {@link #INFINITE_WINDOW}<a name="line.353"></a>
<FONT color="green">354</FONT>         */<a name="line.354"></a>
<FONT color="green">355</FONT>        public void setWindowSize(int windowSize) throws MathIllegalArgumentException {<a name="line.355"></a>
<FONT color="green">356</FONT>            if (windowSize &lt; 1 &amp;&amp; windowSize != INFINITE_WINDOW) {<a name="line.356"></a>
<FONT color="green">357</FONT>                throw new MathIllegalArgumentException(<a name="line.357"></a>
<FONT color="green">358</FONT>                        LocalizedFormats.NOT_POSITIVE_WINDOW_SIZE, windowSize);<a name="line.358"></a>
<FONT color="green">359</FONT>            }<a name="line.359"></a>
<FONT color="green">360</FONT>    <a name="line.360"></a>
<FONT color="green">361</FONT>            this.windowSize = windowSize;<a name="line.361"></a>
<FONT color="green">362</FONT>    <a name="line.362"></a>
<FONT color="green">363</FONT>            // We need to check to see if we need to discard elements<a name="line.363"></a>
<FONT color="green">364</FONT>            // from the front of the array.  If the windowSize is less than<a name="line.364"></a>
<FONT color="green">365</FONT>            // the current number of elements.<a name="line.365"></a>
<FONT color="green">366</FONT>            if (windowSize != INFINITE_WINDOW &amp;&amp; windowSize &lt; eDA.getNumElements()) {<a name="line.366"></a>
<FONT color="green">367</FONT>                eDA.discardFrontElements(eDA.getNumElements() - windowSize);<a name="line.367"></a>
<FONT color="green">368</FONT>            }<a name="line.368"></a>
<FONT color="green">369</FONT>        }<a name="line.369"></a>
<FONT color="green">370</FONT>    <a name="line.370"></a>
<FONT color="green">371</FONT>        /**<a name="line.371"></a>
<FONT color="green">372</FONT>         * Returns the current set of values in an array of double primitives.<a name="line.372"></a>
<FONT color="green">373</FONT>         * The order of addition is preserved.  The returned array is a fresh<a name="line.373"></a>
<FONT color="green">374</FONT>         * copy of the underlying data -- i.e., it is not a reference to the<a name="line.374"></a>
<FONT color="green">375</FONT>         * stored data.<a name="line.375"></a>
<FONT color="green">376</FONT>         *<a name="line.376"></a>
<FONT color="green">377</FONT>         * @return returns the current set of numbers in the order in which they<a name="line.377"></a>
<FONT color="green">378</FONT>         *         were added to this set<a name="line.378"></a>
<FONT color="green">379</FONT>         */<a name="line.379"></a>
<FONT color="green">380</FONT>        public double[] getValues() {<a name="line.380"></a>
<FONT color="green">381</FONT>            return eDA.getElements();<a name="line.381"></a>
<FONT color="green">382</FONT>        }<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>        /**<a name="line.384"></a>
<FONT color="green">385</FONT>         * Returns the current set of values in an array of double primitives,<a name="line.385"></a>
<FONT color="green">386</FONT>         * sorted in ascending order.  The returned array is a fresh<a name="line.386"></a>
<FONT color="green">387</FONT>         * copy of the underlying data -- i.e., it is not a reference to the<a name="line.387"></a>
<FONT color="green">388</FONT>         * stored data.<a name="line.388"></a>
<FONT color="green">389</FONT>         * @return returns the current set of<a name="line.389"></a>
<FONT color="green">390</FONT>         * numbers sorted in ascending order<a name="line.390"></a>
<FONT color="green">391</FONT>         */<a name="line.391"></a>
<FONT color="green">392</FONT>        public double[] getSortedValues() {<a name="line.392"></a>
<FONT color="green">393</FONT>            double[] sort = getValues();<a name="line.393"></a>
<FONT color="green">394</FONT>            Arrays.sort(sort);<a name="line.394"></a>
<FONT color="green">395</FONT>            return sort;<a name="line.395"></a>
<FONT color="green">396</FONT>        }<a name="line.396"></a>
<FONT color="green">397</FONT>    <a name="line.397"></a>
<FONT color="green">398</FONT>        /**<a name="line.398"></a>
<FONT color="green">399</FONT>         * Returns the element at the specified index<a name="line.399"></a>
<FONT color="green">400</FONT>         * @param index The Index of the element<a name="line.400"></a>
<FONT color="green">401</FONT>         * @return return the element at the specified index<a name="line.401"></a>
<FONT color="green">402</FONT>         */<a name="line.402"></a>
<FONT color="green">403</FONT>        public double getElement(int index) {<a name="line.403"></a>
<FONT color="green">404</FONT>            return eDA.getElement(index);<a name="line.404"></a>
<FONT color="green">405</FONT>        }<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>        /**<a name="line.407"></a>
<FONT color="green">408</FONT>         * Returns an estimate for the pth percentile of the stored values.<a name="line.408"></a>
<FONT color="green">409</FONT>         * &lt;p&gt;<a name="line.409"></a>
<FONT color="green">410</FONT>         * The implementation provided here follows the first estimation procedure presented<a name="line.410"></a>
<FONT color="green">411</FONT>         * &lt;a href="http://www.itl.nist.gov/div898/handbook/prc/section2/prc252.htm"&gt;here.&lt;/a&gt;<a name="line.411"></a>
<FONT color="green">412</FONT>         * &lt;/p&gt;&lt;p&gt;<a name="line.412"></a>
<FONT color="green">413</FONT>         * &lt;strong&gt;Preconditions&lt;/strong&gt;:&lt;ul&gt;<a name="line.413"></a>
<FONT color="green">414</FONT>         * &lt;li&gt;&lt;code&gt;0 &amp;lt; p &amp;le; 100&lt;/code&gt; (otherwise an<a name="line.414"></a>
<FONT color="green">415</FONT>         * &lt;code&gt;MathIllegalArgumentException&lt;/code&gt; is thrown)&lt;/li&gt;<a name="line.415"></a>
<FONT color="green">416</FONT>         * &lt;li&gt;at least one value must be stored (returns &lt;code&gt;Double.NaN<a name="line.416"></a>
<FONT color="green">417</FONT>         *     &lt;/code&gt; otherwise)&lt;/li&gt;<a name="line.417"></a>
<FONT color="green">418</FONT>         * &lt;/ul&gt;&lt;/p&gt;<a name="line.418"></a>
<FONT color="green">419</FONT>         *<a name="line.419"></a>
<FONT color="green">420</FONT>         * @param p the requested percentile (scaled from 0 - 100)<a name="line.420"></a>
<FONT color="green">421</FONT>         * @return An estimate for the pth percentile of the stored data<a name="line.421"></a>
<FONT color="green">422</FONT>         * @throws MathIllegalStateException if percentile implementation has been<a name="line.422"></a>
<FONT color="green">423</FONT>         *  overridden and the supplied implementation does not support setQuantile<a name="line.423"></a>
<FONT color="green">424</FONT>         * @throws MathIllegalArgumentException if p is not a valid quantile<a name="line.424"></a>
<FONT color="green">425</FONT>         */<a name="line.425"></a>
<FONT color="green">426</FONT>        public double getPercentile(double p) throws MathIllegalStateException, MathIllegalArgumentException {<a name="line.426"></a>
<FONT color="green">427</FONT>            if (percentileImpl instanceof Percentile) {<a name="line.427"></a>
<FONT color="green">428</FONT>                ((Percentile) percentileImpl).setQuantile(p);<a name="line.428"></a>
<FONT color="green">429</FONT>            } else {<a name="line.429"></a>
<FONT color="green">430</FONT>                try {<a name="line.430"></a>
<FONT color="green">431</FONT>                    percentileImpl.getClass().getMethod(SET_QUANTILE_METHOD_NAME,<a name="line.431"></a>
<FONT color="green">432</FONT>                            new Class[] {Double.TYPE}).invoke(percentileImpl,<a name="line.432"></a>
<FONT color="green">433</FONT>                                    new Object[] {Double.valueOf(p)});<a name="line.433"></a>
<FONT color="green">434</FONT>                } catch (NoSuchMethodException e1) { // Setter guard should prevent<a name="line.434"></a>
<FONT color="green">435</FONT>                    throw new MathIllegalStateException(<a name="line.435"></a>
<FONT color="green">436</FONT>                          LocalizedFormats.PERCENTILE_IMPLEMENTATION_UNSUPPORTED_METHOD,<a name="line.436"></a>
<FONT color="green">437</FONT>                          percentileImpl.getClass().getName(), SET_QUANTILE_METHOD_NAME);<a name="line.437"></a>
<FONT color="green">438</FONT>                } catch (IllegalAccessException e2) {<a name="line.438"></a>
<FONT color="green">439</FONT>                    throw new MathIllegalStateException(<a name="line.439"></a>
<FONT color="green">440</FONT>                          LocalizedFormats.PERCENTILE_IMPLEMENTATION_CANNOT_ACCESS_METHOD,<a name="line.440"></a>
<FONT color="green">441</FONT>                          SET_QUANTILE_METHOD_NAME, percentileImpl.getClass().getName());<a name="line.441"></a>
<FONT color="green">442</FONT>                } catch (InvocationTargetException e3) {<a name="line.442"></a>
<FONT color="green">443</FONT>                    throw new IllegalStateException(e3.getCause());<a name="line.443"></a>
<FONT color="green">444</FONT>                }<a name="line.444"></a>
<FONT color="green">445</FONT>            }<a name="line.445"></a>
<FONT color="green">446</FONT>            return apply(percentileImpl);<a name="line.446"></a>
<FONT color="green">447</FONT>        }<a name="line.447"></a>
<FONT color="green">448</FONT>    <a name="line.448"></a>
<FONT color="green">449</FONT>        /**<a name="line.449"></a>
<FONT color="green">450</FONT>         * Generates a text report displaying univariate statistics from values<a name="line.450"></a>
<FONT color="green">451</FONT>         * that have been added.  Each statistic is displayed on a separate<a name="line.451"></a>
<FONT color="green">452</FONT>         * line.<a name="line.452"></a>
<FONT color="green">453</FONT>         *<a name="line.453"></a>
<FONT color="green">454</FONT>         * @return String with line feeds displaying statistics<a name="line.454"></a>
<FONT color="green">455</FONT>         */<a name="line.455"></a>
<FONT color="green">456</FONT>        @Override<a name="line.456"></a>
<FONT color="green">457</FONT>        public String toString() {<a name="line.457"></a>
<FONT color="green">458</FONT>            StringBuilder outBuffer = new StringBuilder();<a name="line.458"></a>
<FONT color="green">459</FONT>            String endl = "\n";<a name="line.459"></a>
<FONT color="green">460</FONT>            outBuffer.append("DescriptiveStatistics:").append(endl);<a name="line.460"></a>
<FONT color="green">461</FONT>            outBuffer.append("n: ").append(getN()).append(endl);<a name="line.461"></a>
<FONT color="green">462</FONT>            outBuffer.append("min: ").append(getMin()).append(endl);<a name="line.462"></a>
<FONT color="green">463</FONT>            outBuffer.append("max: ").append(getMax()).append(endl);<a name="line.463"></a>
<FONT color="green">464</FONT>            outBuffer.append("mean: ").append(getMean()).append(endl);<a name="line.464"></a>
<FONT color="green">465</FONT>            outBuffer.append("std dev: ").append(getStandardDeviation())<a name="line.465"></a>
<FONT color="green">466</FONT>                .append(endl);<a name="line.466"></a>
<FONT color="green">467</FONT>            try {<a name="line.467"></a>
<FONT color="green">468</FONT>                // No catch for MIAE because actual parameter is valid below<a name="line.468"></a>
<FONT color="green">469</FONT>                outBuffer.append("median: ").append(getPercentile(50)).append(endl);<a name="line.469"></a>
<FONT color="green">470</FONT>            } catch (MathIllegalStateException ex) {<a name="line.470"></a>
<FONT color="green">471</FONT>                outBuffer.append("median: unavailable").append(endl);<a name="line.471"></a>
<FONT color="green">472</FONT>            }<a name="line.472"></a>
<FONT color="green">473</FONT>            outBuffer.append("skewness: ").append(getSkewness()).append(endl);<a name="line.473"></a>
<FONT color="green">474</FONT>            outBuffer.append("kurtosis: ").append(getKurtosis()).append(endl);<a name="line.474"></a>
<FONT color="green">475</FONT>            return outBuffer.toString();<a name="line.475"></a>
<FONT color="green">476</FONT>        }<a name="line.476"></a>
<FONT color="green">477</FONT>    <a name="line.477"></a>
<FONT color="green">478</FONT>        /**<a name="line.478"></a>
<FONT color="green">479</FONT>         * Apply the given statistic to the data associated with this set of statistics.<a name="line.479"></a>
<FONT color="green">480</FONT>         * @param stat the statistic to apply<a name="line.480"></a>
<FONT color="green">481</FONT>         * @return the computed value of the statistic.<a name="line.481"></a>
<FONT color="green">482</FONT>         */<a name="line.482"></a>
<FONT color="green">483</FONT>        public double apply(UnivariateStatistic stat) {<a name="line.483"></a>
<FONT color="green">484</FONT>            // No try-catch or advertised exception here because arguments are guaranteed valid<a name="line.484"></a>
<FONT color="green">485</FONT>            return eDA.compute(stat);<a name="line.485"></a>
<FONT color="green">486</FONT>        }<a name="line.486"></a>
<FONT color="green">487</FONT>    <a name="line.487"></a>
<FONT color="green">488</FONT>        // Implementation getters and setter<a name="line.488"></a>
<FONT color="green">489</FONT>    <a name="line.489"></a>
<FONT color="green">490</FONT>        /**<a name="line.490"></a>
<FONT color="green">491</FONT>         * Returns the currently configured mean implementation.<a name="line.491"></a>
<FONT color="green">492</FONT>         *<a name="line.492"></a>
<FONT color="green">493</FONT>         * @return the UnivariateStatistic implementing the mean<a name="line.493"></a>
<FONT color="green">494</FONT>         * @since 1.2<a name="line.494"></a>
<FONT color="green">495</FONT>         */<a name="line.495"></a>
<FONT color="green">496</FONT>        public synchronized UnivariateStatistic getMeanImpl() {<a name="line.496"></a>
<FONT color="green">497</FONT>            return meanImpl;<a name="line.497"></a>
<FONT color="green">498</FONT>        }<a name="line.498"></a>
<FONT color="green">499</FONT>    <a name="line.499"></a>
<FONT color="green">500</FONT>        /**<a name="line.500"></a>
<FONT color="green">501</FONT>         * &lt;p&gt;Sets the implementation for the mean.&lt;/p&gt;<a name="line.501"></a>
<FONT color="green">502</FONT>         *<a name="line.502"></a>
<FONT color="green">503</FONT>         * @param meanImpl the UnivariateStatistic instance to use<a name="line.503"></a>
<FONT color="green">504</FONT>         * for computing the mean<a name="line.504"></a>
<FONT color="green">505</FONT>         * @since 1.2<a name="line.505"></a>
<FONT color="green">506</FONT>         */<a name="line.506"></a>
<FONT color="green">507</FONT>        public synchronized void setMeanImpl(UnivariateStatistic meanImpl) {<a name="line.507"></a>
<FONT color="green">508</FONT>            this.meanImpl = meanImpl;<a name="line.508"></a>
<FONT color="green">509</FONT>        }<a name="line.509"></a>
<FONT color="green">510</FONT>    <a name="line.510"></a>
<FONT color="green">511</FONT>        /**<a name="line.511"></a>
<FONT color="green">512</FONT>         * Returns the currently configured geometric mean implementation.<a name="line.512"></a>
<FONT color="green">513</FONT>         *<a name="line.513"></a>
<FONT color="green">514</FONT>         * @return the UnivariateStatistic implementing the geometric mean<a name="line.514"></a>
<FONT color="green">515</FONT>         * @since 1.2<a name="line.515"></a>
<FONT color="green">516</FONT>         */<a name="line.516"></a>
<FONT color="green">517</FONT>        public synchronized UnivariateStatistic getGeometricMeanImpl() {<a name="line.517"></a>
<FONT color="green">518</FONT>            return geometricMeanImpl;<a name="line.518"></a>
<FONT color="green">519</FONT>        }<a name="line.519"></a>
<FONT color="green">520</FONT>    <a name="line.520"></a>
<FONT color="green">521</FONT>        /**<a name="line.521"></a>
<FONT color="green">522</FONT>         * &lt;p&gt;Sets the implementation for the gemoetric mean.&lt;/p&gt;<a name="line.522"></a>
<FONT color="green">523</FONT>         *<a name="line.523"></a>
<FONT color="green">524</FONT>         * @param geometricMeanImpl the UnivariateStatistic instance to use<a name="line.524"></a>
<FONT color="green">525</FONT>         * for computing the geometric mean<a name="line.525"></a>
<FONT color="green">526</FONT>         * @since 1.2<a name="line.526"></a>
<FONT color="green">527</FONT>         */<a name="line.527"></a>
<FONT color="green">528</FONT>        public synchronized void setGeometricMeanImpl(<a name="line.528"></a>
<FONT color="green">529</FONT>                UnivariateStatistic geometricMeanImpl) {<a name="line.529"></a>
<FONT color="green">530</FONT>            this.geometricMeanImpl = geometricMeanImpl;<a name="line.530"></a>
<FONT color="green">531</FONT>        }<a name="line.531"></a>
<FONT color="green">532</FONT>    <a name="line.532"></a>
<FONT color="green">533</FONT>        /**<a name="line.533"></a>
<FONT color="green">534</FONT>         * Returns the currently configured kurtosis implementation.<a name="line.534"></a>
<FONT color="green">535</FONT>         *<a name="line.535"></a>
<FONT color="green">536</FONT>         * @return the UnivariateStatistic implementing the kurtosis<a name="line.536"></a>
<FONT color="green">537</FONT>         * @since 1.2<a name="line.537"></a>
<FONT color="green">538</FONT>         */<a name="line.538"></a>
<FONT color="green">539</FONT>        public synchronized UnivariateStatistic getKurtosisImpl() {<a name="line.539"></a>
<FONT color="green">540</FONT>            return kurtosisImpl;<a name="line.540"></a>
<FONT color="green">541</FONT>        }<a name="line.541"></a>
<FONT color="green">542</FONT>    <a name="line.542"></a>
<FONT color="green">543</FONT>        /**<a name="line.543"></a>
<FONT color="green">544</FONT>         * &lt;p&gt;Sets the implementation for the kurtosis.&lt;/p&gt;<a name="line.544"></a>
<FONT color="green">545</FONT>         *<a name="line.545"></a>
<FONT color="green">546</FONT>         * @param kurtosisImpl the UnivariateStatistic instance to use<a name="line.546"></a>
<FONT color="green">547</FONT>         * for computing the kurtosis<a name="line.547"></a>
<FONT color="green">548</FONT>         * @since 1.2<a name="line.548"></a>
<FONT color="green">549</FONT>         */<a name="line.549"></a>
<FONT color="green">550</FONT>        public synchronized void setKurtosisImpl(UnivariateStatistic kurtosisImpl) {<a name="line.550"></a>
<FONT color="green">551</FONT>            this.kurtosisImpl = kurtosisImpl;<a name="line.551"></a>
<FONT color="green">552</FONT>        }<a name="line.552"></a>
<FONT color="green">553</FONT>    <a name="line.553"></a>
<FONT color="green">554</FONT>        /**<a name="line.554"></a>
<FONT color="green">555</FONT>         * Returns the currently configured maximum implementation.<a name="line.555"></a>
<FONT color="green">556</FONT>         *<a name="line.556"></a>
<FONT color="green">557</FONT>         * @return the UnivariateStatistic implementing the maximum<a name="line.557"></a>
<FONT color="green">558</FONT>         * @since 1.2<a name="line.558"></a>
<FONT color="green">559</FONT>         */<a name="line.559"></a>
<FONT color="green">560</FONT>        public synchronized UnivariateStatistic getMaxImpl() {<a name="line.560"></a>
<FONT color="green">561</FONT>            return maxImpl;<a name="line.561"></a>
<FONT color="green">562</FONT>        }<a name="line.562"></a>
<FONT color="green">563</FONT>    <a name="line.563"></a>
<FONT color="green">564</FONT>        /**<a name="line.564"></a>
<FONT color="green">565</FONT>         * &lt;p&gt;Sets the implementation for the maximum.&lt;/p&gt;<a name="line.565"></a>
<FONT color="green">566</FONT>         *<a name="line.566"></a>
<FONT color="green">567</FONT>         * @param maxImpl the UnivariateStatistic instance to use<a name="line.567"></a>
<FONT color="green">568</FONT>         * for computing the maximum<a name="line.568"></a>
<FONT color="green">569</FONT>         * @since 1.2<a name="line.569"></a>
<FONT color="green">570</FONT>         */<a name="line.570"></a>
<FONT color="green">571</FONT>        public synchronized void setMaxImpl(UnivariateStatistic maxImpl) {<a name="line.571"></a>
<FONT color="green">572</FONT>            this.maxImpl = maxImpl;<a name="line.572"></a>
<FONT color="green">573</FONT>        }<a name="line.573"></a>
<FONT color="green">574</FONT>    <a name="line.574"></a>
<FONT color="green">575</FONT>        /**<a name="line.575"></a>
<FONT color="green">576</FONT>         * Returns the currently configured minimum implementation.<a name="line.576"></a>
<FONT color="green">577</FONT>         *<a name="line.577"></a>
<FONT color="green">578</FONT>         * @return the UnivariateStatistic implementing the minimum<a name="line.578"></a>
<FONT color="green">579</FONT>         * @since 1.2<a name="line.579"></a>
<FONT color="green">580</FONT>         */<a name="line.580"></a>
<FONT color="green">581</FONT>        public synchronized UnivariateStatistic getMinImpl() {<a name="line.581"></a>
<FONT color="green">582</FONT>            return minImpl;<a name="line.582"></a>
<FONT color="green">583</FONT>        }<a name="line.583"></a>
<FONT color="green">584</FONT>    <a name="line.584"></a>
<FONT color="green">585</FONT>        /**<a name="line.585"></a>
<FONT color="green">586</FONT>         * &lt;p&gt;Sets the implementation for the minimum.&lt;/p&gt;<a name="line.586"></a>
<FONT color="green">587</FONT>         *<a name="line.587"></a>
<FONT color="green">588</FONT>         * @param minImpl the UnivariateStatistic instance to use<a name="line.588"></a>
<FONT color="green">589</FONT>         * for computing the minimum<a name="line.589"></a>
<FONT color="green">590</FONT>         * @since 1.2<a name="line.590"></a>
<FONT color="green">591</FONT>         */<a name="line.591"></a>
<FONT color="green">592</FONT>        public synchronized void setMinImpl(UnivariateStatistic minImpl) {<a name="line.592"></a>
<FONT color="green">593</FONT>            this.minImpl = minImpl;<a name="line.593"></a>
<FONT color="green">594</FONT>        }<a name="line.594"></a>
<FONT color="green">595</FONT>    <a name="line.595"></a>
<FONT color="green">596</FONT>        /**<a name="line.596"></a>
<FONT color="green">597</FONT>         * Returns the currently configured percentile implementation.<a name="line.597"></a>
<FONT color="green">598</FONT>         *<a name="line.598"></a>
<FONT color="green">599</FONT>         * @return the UnivariateStatistic implementing the percentile<a name="line.599"></a>
<FONT color="green">600</FONT>         * @since 1.2<a name="line.600"></a>
<FONT color="green">601</FONT>         */<a name="line.601"></a>
<FONT color="green">602</FONT>        public synchronized UnivariateStatistic getPercentileImpl() {<a name="line.602"></a>
<FONT color="green">603</FONT>            return percentileImpl;<a name="line.603"></a>
<FONT color="green">604</FONT>        }<a name="line.604"></a>
<FONT color="green">605</FONT>    <a name="line.605"></a>
<FONT color="green">606</FONT>        /**<a name="line.606"></a>
<FONT color="green">607</FONT>         * Sets the implementation to be used by {@link #getPercentile(double)}.<a name="line.607"></a>
<FONT color="green">608</FONT>         * The supplied &lt;code&gt;UnivariateStatistic&lt;/code&gt; must provide a<a name="line.608"></a>
<FONT color="green">609</FONT>         * &lt;code&gt;setQuantile(double)&lt;/code&gt; method; otherwise<a name="line.609"></a>
<FONT color="green">610</FONT>         * &lt;code&gt;IllegalArgumentException&lt;/code&gt; is thrown.<a name="line.610"></a>
<FONT color="green">611</FONT>         *<a name="line.611"></a>
<FONT color="green">612</FONT>         * @param percentileImpl the percentileImpl to set<a name="line.612"></a>
<FONT color="green">613</FONT>         * @throws MathIllegalArgumentException if the supplied implementation does not<a name="line.613"></a>
<FONT color="green">614</FONT>         *  provide a &lt;code&gt;setQuantile&lt;/code&gt; method<a name="line.614"></a>
<FONT color="green">615</FONT>         * @since 1.2<a name="line.615"></a>
<FONT color="green">616</FONT>         */<a name="line.616"></a>
<FONT color="green">617</FONT>        public synchronized void setPercentileImpl(UnivariateStatistic percentileImpl)<a name="line.617"></a>
<FONT color="green">618</FONT>        throws MathIllegalArgumentException {<a name="line.618"></a>
<FONT color="green">619</FONT>            try {<a name="line.619"></a>
<FONT color="green">620</FONT>                percentileImpl.getClass().getMethod(SET_QUANTILE_METHOD_NAME,<a name="line.620"></a>
<FONT color="green">621</FONT>                        new Class[] {Double.TYPE}).invoke(percentileImpl,<a name="line.621"></a>
<FONT color="green">622</FONT>                                new Object[] {Double.valueOf(50.0d)});<a name="line.622"></a>
<FONT color="green">623</FONT>            } catch (NoSuchMethodException e1) {<a name="line.623"></a>
<FONT color="green">624</FONT>                throw new MathIllegalArgumentException(<a name="line.624"></a>
<FONT color="green">625</FONT>                      LocalizedFormats.PERCENTILE_IMPLEMENTATION_UNSUPPORTED_METHOD,<a name="line.625"></a>
<FONT color="green">626</FONT>                      percentileImpl.getClass().getName(), SET_QUANTILE_METHOD_NAME);<a name="line.626"></a>
<FONT color="green">627</FONT>            } catch (IllegalAccessException e2) {<a name="line.627"></a>
<FONT color="green">628</FONT>                throw new MathIllegalArgumentException(<a name="line.628"></a>
<FONT color="green">629</FONT>                      LocalizedFormats.PERCENTILE_IMPLEMENTATION_CANNOT_ACCESS_METHOD,<a name="line.629"></a>
<FONT color="green">630</FONT>                      SET_QUANTILE_METHOD_NAME, percentileImpl.getClass().getName());<a name="line.630"></a>
<FONT color="green">631</FONT>            } catch (InvocationTargetException e3) {<a name="line.631"></a>
<FONT color="green">632</FONT>                throw new IllegalArgumentException(e3.getCause());<a name="line.632"></a>
<FONT color="green">633</FONT>            }<a name="line.633"></a>
<FONT color="green">634</FONT>            this.percentileImpl = percentileImpl;<a name="line.634"></a>
<FONT color="green">635</FONT>        }<a name="line.635"></a>
<FONT color="green">636</FONT>    <a name="line.636"></a>
<FONT color="green">637</FONT>        /**<a name="line.637"></a>
<FONT color="green">638</FONT>         * Returns the currently configured skewness implementation.<a name="line.638"></a>
<FONT color="green">639</FONT>         *<a name="line.639"></a>
<FONT color="green">640</FONT>         * @return the UnivariateStatistic implementing the skewness<a name="line.640"></a>
<FONT color="green">641</FONT>         * @since 1.2<a name="line.641"></a>
<FONT color="green">642</FONT>         */<a name="line.642"></a>
<FONT color="green">643</FONT>        public synchronized UnivariateStatistic getSkewnessImpl() {<a name="line.643"></a>
<FONT color="green">644</FONT>            return skewnessImpl;<a name="line.644"></a>
<FONT color="green">645</FONT>        }<a name="line.645"></a>
<FONT color="green">646</FONT>    <a name="line.646"></a>
<FONT color="green">647</FONT>        /**<a name="line.647"></a>
<FONT color="green">648</FONT>         * &lt;p&gt;Sets the implementation for the skewness.&lt;/p&gt;<a name="line.648"></a>
<FONT color="green">649</FONT>         *<a name="line.649"></a>
<FONT color="green">650</FONT>         * @param skewnessImpl the UnivariateStatistic instance to use<a name="line.650"></a>
<FONT color="green">651</FONT>         * for computing the skewness<a name="line.651"></a>
<FONT color="green">652</FONT>         * @since 1.2<a name="line.652"></a>
<FONT color="green">653</FONT>         */<a name="line.653"></a>
<FONT color="green">654</FONT>        public synchronized void setSkewnessImpl(<a name="line.654"></a>
<FONT color="green">655</FONT>                UnivariateStatistic skewnessImpl) {<a name="line.655"></a>
<FONT color="green">656</FONT>            this.skewnessImpl = skewnessImpl;<a name="line.656"></a>
<FONT color="green">657</FONT>        }<a name="line.657"></a>
<FONT color="green">658</FONT>    <a name="line.658"></a>
<FONT color="green">659</FONT>        /**<a name="line.659"></a>
<FONT color="green">660</FONT>         * Returns the currently configured variance implementation.<a name="line.660"></a>
<FONT color="green">661</FONT>         *<a name="line.661"></a>
<FONT color="green">662</FONT>         * @return the UnivariateStatistic implementing the variance<a name="line.662"></a>
<FONT color="green">663</FONT>         * @since 1.2<a name="line.663"></a>
<FONT color="green">664</FONT>         */<a name="line.664"></a>
<FONT color="green">665</FONT>        public synchronized UnivariateStatistic getVarianceImpl() {<a name="line.665"></a>
<FONT color="green">666</FONT>            return varianceImpl;<a name="line.666"></a>
<FONT color="green">667</FONT>        }<a name="line.667"></a>
<FONT color="green">668</FONT>    <a name="line.668"></a>
<FONT color="green">669</FONT>        /**<a name="line.669"></a>
<FONT color="green">670</FONT>         * &lt;p&gt;Sets the implementation for the variance.&lt;/p&gt;<a name="line.670"></a>
<FONT color="green">671</FONT>         *<a name="line.671"></a>
<FONT color="green">672</FONT>         * @param varianceImpl the UnivariateStatistic instance to use<a name="line.672"></a>
<FONT color="green">673</FONT>         * for computing the variance<a name="line.673"></a>
<FONT color="green">674</FONT>         * @since 1.2<a name="line.674"></a>
<FONT color="green">675</FONT>         */<a name="line.675"></a>
<FONT color="green">676</FONT>        public synchronized void setVarianceImpl(<a name="line.676"></a>
<FONT color="green">677</FONT>                UnivariateStatistic varianceImpl) {<a name="line.677"></a>
<FONT color="green">678</FONT>            this.varianceImpl = varianceImpl;<a name="line.678"></a>
<FONT color="green">679</FONT>        }<a name="line.679"></a>
<FONT color="green">680</FONT>    <a name="line.680"></a>
<FONT color="green">681</FONT>        /**<a name="line.681"></a>
<FONT color="green">682</FONT>         * Returns the currently configured sum of squares implementation.<a name="line.682"></a>
<FONT color="green">683</FONT>         *<a name="line.683"></a>
<FONT color="green">684</FONT>         * @return the UnivariateStatistic implementing the sum of squares<a name="line.684"></a>
<FONT color="green">685</FONT>         * @since 1.2<a name="line.685"></a>
<FONT color="green">686</FONT>         */<a name="line.686"></a>
<FONT color="green">687</FONT>        public synchronized UnivariateStatistic getSumsqImpl() {<a name="line.687"></a>
<FONT color="green">688</FONT>            return sumsqImpl;<a name="line.688"></a>
<FONT color="green">689</FONT>        }<a name="line.689"></a>
<FONT color="green">690</FONT>    <a name="line.690"></a>
<FONT color="green">691</FONT>        /**<a name="line.691"></a>
<FONT color="green">692</FONT>         * &lt;p&gt;Sets the implementation for the sum of squares.&lt;/p&gt;<a name="line.692"></a>
<FONT color="green">693</FONT>         *<a name="line.693"></a>
<FONT color="green">694</FONT>         * @param sumsqImpl the UnivariateStatistic instance to use<a name="line.694"></a>
<FONT color="green">695</FONT>         * for computing the sum of squares<a name="line.695"></a>
<FONT color="green">696</FONT>         * @since 1.2<a name="line.696"></a>
<FONT color="green">697</FONT>         */<a name="line.697"></a>
<FONT color="green">698</FONT>        public synchronized void setSumsqImpl(UnivariateStatistic sumsqImpl) {<a name="line.698"></a>
<FONT color="green">699</FONT>            this.sumsqImpl = sumsqImpl;<a name="line.699"></a>
<FONT color="green">700</FONT>        }<a name="line.700"></a>
<FONT color="green">701</FONT>    <a name="line.701"></a>
<FONT color="green">702</FONT>        /**<a name="line.702"></a>
<FONT color="green">703</FONT>         * Returns the currently configured sum implementation.<a name="line.703"></a>
<FONT color="green">704</FONT>         *<a name="line.704"></a>
<FONT color="green">705</FONT>         * @return the UnivariateStatistic implementing the sum<a name="line.705"></a>
<FONT color="green">706</FONT>         * @since 1.2<a name="line.706"></a>
<FONT color="green">707</FONT>         */<a name="line.707"></a>
<FONT color="green">708</FONT>        public synchronized UnivariateStatistic getSumImpl() {<a name="line.708"></a>
<FONT color="green">709</FONT>            return sumImpl;<a name="line.709"></a>
<FONT color="green">710</FONT>        }<a name="line.710"></a>
<FONT color="green">711</FONT>    <a name="line.711"></a>
<FONT color="green">712</FONT>        /**<a name="line.712"></a>
<FONT color="green">713</FONT>         * &lt;p&gt;Sets the implementation for the sum.&lt;/p&gt;<a name="line.713"></a>
<FONT color="green">714</FONT>         *<a name="line.714"></a>
<FONT color="green">715</FONT>         * @param sumImpl the UnivariateStatistic instance to use<a name="line.715"></a>
<FONT color="green">716</FONT>         * for computing the sum<a name="line.716"></a>
<FONT color="green">717</FONT>         * @since 1.2<a name="line.717"></a>
<FONT color="green">718</FONT>         */<a name="line.718"></a>
<FONT color="green">719</FONT>        public synchronized void setSumImpl(UnivariateStatistic sumImpl) {<a name="line.719"></a>
<FONT color="green">720</FONT>            this.sumImpl = sumImpl;<a name="line.720"></a>
<FONT color="green">721</FONT>        }<a name="line.721"></a>
<FONT color="green">722</FONT>    <a name="line.722"></a>
<FONT color="green">723</FONT>        /**<a name="line.723"></a>
<FONT color="green">724</FONT>         * Returns a copy of this DescriptiveStatistics instance with the same internal state.<a name="line.724"></a>
<FONT color="green">725</FONT>         *<a name="line.725"></a>
<FONT color="green">726</FONT>         * @return a copy of this<a name="line.726"></a>
<FONT color="green">727</FONT>         */<a name="line.727"></a>
<FONT color="green">728</FONT>        public DescriptiveStatistics copy() {<a name="line.728"></a>
<FONT color="green">729</FONT>            DescriptiveStatistics result = new DescriptiveStatistics();<a name="line.729"></a>
<FONT color="green">730</FONT>            // No try-catch or advertised exception because parms are guaranteed valid<a name="line.730"></a>
<FONT color="green">731</FONT>            copy(this, result);<a name="line.731"></a>
<FONT color="green">732</FONT>            return result;<a name="line.732"></a>
<FONT color="green">733</FONT>        }<a name="line.733"></a>
<FONT color="green">734</FONT>    <a name="line.734"></a>
<FONT color="green">735</FONT>        /**<a name="line.735"></a>
<FONT color="green">736</FONT>         * Copies source to dest.<a name="line.736"></a>
<FONT color="green">737</FONT>         * &lt;p&gt;Neither source nor dest can be null.&lt;/p&gt;<a name="line.737"></a>
<FONT color="green">738</FONT>         *<a name="line.738"></a>
<FONT color="green">739</FONT>         * @param source DescriptiveStatistics to copy<a name="line.739"></a>
<FONT color="green">740</FONT>         * @param dest DescriptiveStatistics to copy to<a name="line.740"></a>
<FONT color="green">741</FONT>         * @throws NullArgumentException if either source or dest is null<a name="line.741"></a>
<FONT color="green">742</FONT>         */<a name="line.742"></a>
<FONT color="green">743</FONT>        public static void copy(DescriptiveStatistics source, DescriptiveStatistics dest)<a name="line.743"></a>
<FONT color="green">744</FONT>            throws NullArgumentException {<a name="line.744"></a>
<FONT color="green">745</FONT>            MathUtils.checkNotNull(source);<a name="line.745"></a>
<FONT color="green">746</FONT>            MathUtils.checkNotNull(dest);<a name="line.746"></a>
<FONT color="green">747</FONT>            // Copy data and window size<a name="line.747"></a>
<FONT color="green">748</FONT>            dest.eDA = source.eDA.copy();<a name="line.748"></a>
<FONT color="green">749</FONT>            dest.windowSize = source.windowSize;<a name="line.749"></a>
<FONT color="green">750</FONT>    <a name="line.750"></a>
<FONT color="green">751</FONT>            // Copy implementations<a name="line.751"></a>
<FONT color="green">752</FONT>            dest.maxImpl = source.maxImpl.copy();<a name="line.752"></a>
<FONT color="green">753</FONT>            dest.meanImpl = source.meanImpl.copy();<a name="line.753"></a>
<FONT color="green">754</FONT>            dest.minImpl = source.minImpl.copy();<a name="line.754"></a>
<FONT color="green">755</FONT>            dest.sumImpl = source.sumImpl.copy();<a name="line.755"></a>
<FONT color="green">756</FONT>            dest.varianceImpl = source.varianceImpl.copy();<a name="line.756"></a>
<FONT color="green">757</FONT>            dest.sumsqImpl = source.sumsqImpl.copy();<a name="line.757"></a>
<FONT color="green">758</FONT>            dest.geometricMeanImpl = source.geometricMeanImpl.copy();<a name="line.758"></a>
<FONT color="green">759</FONT>            dest.kurtosisImpl = source.kurtosisImpl;<a name="line.759"></a>
<FONT color="green">760</FONT>            dest.skewnessImpl = source.skewnessImpl;<a name="line.760"></a>
<FONT color="green">761</FONT>            dest.percentileImpl = source.percentileImpl;<a name="line.761"></a>
<FONT color="green">762</FONT>        }<a name="line.762"></a>
<FONT color="green">763</FONT>    }<a name="line.763"></a>




























































</PRE>
</BODY>
</HTML>
